Until we see the block swap available and some good exchanges for ETT, yes we have to forget the current situation of ETT and wait for the good time to come.
2017 year has been the worse for this project and hope 2018 does bring some good news at the start.
If we sell we are not making any profit since the price is very low now and who would buy when the volume is very low, just keep the patience and wait for the right time ETT will pump as it's due for a success in the future.
As I see they're doing good for product till now.
When it's ready they have enough budget for marketing and other stuff.
Waiting seems good option to me as a ico buyer.